Help with try, except, else finally

[Pytho13]

Hi everyone,

Nice to meet you all! I'm building a calculator with python and I want to add try except else and finally. I have added the try except and the calculator is working but it doesn't return the error message if user input is not an integer.

Can you please take a look?

#User inputs math type
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
* for multiplication
''')
#User inputs number
number_1 = int(input('Enter your first number: ')) 

number_2 = int(input('Enter your second number: '))

#If user chooses addition
try: 
    if operation == '+':
        print('{} + {} = '.format(number_1, number_2))
        print(number_1 + number_2)
except Exception:
    print: ("You have not input a number")

#if user chooses multiplication
try:    
    if operation == '*':
        print('{} * {} = '.format(number_1, number_2))
        print(number_1 * number_2)
except: 
    print: ("You have not input a number")

snippsat write Mar-21-2021, 04:29 PM:
Added code tag in your post,look at BBCode on how to use.